We propose an all-optical experiment to quantify non-Markovianity in an open quantum system through quantum coherence of a single quantum bit. We use an amplitude damping channel implemented by an optical setup with an intense laser beam simulating a single-photon polarization. The optimization over initial states required to quantify non-Markovianity is analytically evaluated. The experimental results are in a very good agreement with the theoretical predictions.
@article{arxiv.1807.05378,
title = {Non-Markovianity through quantum coherence in an all-optical setup},
author = {M. H. M. Passos and P. C. Obando and W. F. Balthazar and F. M. Paula and J. A. O. Huguenin and M. S. Sarandy},
journal= {arXiv preprint arXiv:1807.05378},
year = {2019}
}